For drawings calling out a locking button head socket screw, the 3/8-16 x 3/4 Alloy Steel Button Head Socket Cap Screw with Nylon Insert keeps exact thread and length identification clear. The insert provides a prevailing-torque feature while preserving the compact top-side tool access expected from an internal hex button head screw.
Button head geometry is useful when clearance, appearance, and lower head height matter more than using a standard socket head cap screw profile. The 3/8-16 x 3/4 size is often reviewed for maintenance repairs, replacement assemblies, and retrofit work when a bill of materials specifies an alloy steel locking button head socket screw. Engineers should confirm that the selected size, low-profile button head, and insert behavior match the assembly before substituting from a non-locking screw.
Cold Headers provides catalog depth for specialty socket fasteners and helps purchasers identify the correct alloy steel button head nylon insert size. For adjacent selections, buyers often compare 18-8 Stainless Button Head Socket Cap Screws, 316 Stainless Button Head Socket Cap Screws, and related locking fasteners when checking head style, material, locking feature, thread size, or nearby lengths.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
